Phonographia
Subtitle: sef, llaw fer yn ol trefn Mr. Isaac Pitman
By: wedi ei chyfaddasu i'r iaith Gymraeg gan R.H. Morgan.
Contributors: Pitman, Isaac, Sir, 1813-1897.
Edition: Ail argr. gydag ychwanegiadau.
Publisher: Hughes a'i Fab
Published: 1876
Place of publication: Wrexham
Language: wel
Number of pages: 68
Subjects: Shorthand.
Notes: Adaptation to the Welsh language of Pitman's shorthand.